<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <meta name="测试2" content="测试2">
        <meta description="测试2" content="测试2">
        <title>测试2</title>
        <style>
            * {
                padding:0;
                margin:0;
            }
            h1 {
                margin-bottom:80px;
            }
            div {
                padding-top:50px;
            }
        </style>
    </head>
    <body>
        <h1>我是一个标题</h1>
        <div>我是一个div</div>
    </body>
</html>